Internal-combustion engine



Dec. 14, 19'26; 1,611,007

S. J.v DORLON INTERNAL COMBUSTION ENGINE Filed Nov. 17I 1924 narines SAMUEL'J'. DGRLON, 0F POUGRKEEPS, NEVI YORK.

Application led November 17, 19534.

This invention relates to internal combustion engines, and has for its principal object the provision of an engine so constructed and arranged as to give power at each stroke of the piston both up and down, similar to the action of a steam engine, there being nu .idle stroke for scavenging or other purposes as in engines of the ordinary type.

An important object is the provision of an engine embodying a main or explosion cylinder having means for initially coinpressing the charge of explosive mixture and passing it into the explosion cylinder whereby a greater' degree of compression may be obtained and the power of the engine increased. V

A further object is the provision of an enengine of this type which is entirely'free from poppet, tappet or other similar valve mechanisms, the sole control means consisting` of a sleeve slidable within the auxiliary cylinder, this sleeve having operating therein a piston which performs the function of initially compressing the explosive charge and causing it to cylinder. f

An additional object is the provision of an engine of this type or nature which will be comparatively simple and inexpensive in manufacture, which may be made in any desired size and provided with any number of cylinders, depending upon the character of the work to be done, the engine being furthermore powerful in action, economical in fuel consumption, efcient and dura-ble in service, and a general improvement in the art.

llVith the above and other objects and ad vantages in view, the invention consists in the combination and arrangement of parts to be hereinafter more fully described and claimed, and illustrated in the accompanym `ing drawings, in which:

Figure 1 is a cross-section taken through an engine constructed in accordance with my pass into the explosion visable for any reason.V

Serial No. 750,348.'

preferred manner and which is provided or formed with a cylinder 11 constituting the explosion or power cylinder. This power' cylinder is closed at its ends with suitable heads which may be detachable or integral, as preferred? such details being immaterial as not affecting the essence ofthe invention. rlhis entire member is formed with the usual water jacket 13 for the purpose of effecting cooling and any suitable means may be provided-for causing circulation of-water through this jacket and also through jackets or spaces 14 formed-in theheads 12. Located alongside the power cylinder 11 is an auxiliary cylinder 15 which is: shown as eX- tending `clear through the heads 12. The cylinder block is formed with an exhaust port 16 located substantially at the center of the power cylinder 11 and is formed with upper and lower intake ports 1l' and 18 with which may be connected suitable manifold branches 19 leading from any preferred `means for carburetting a fuel such as gasoline or other explosive material, it being optional whether a positive pressure is or is not provided for forcing fuel to and through the ports 17 into the cylinder 15.

At the upper and lower portions of the power cylinder 11 are provided ports 20 and 21 communicating with the upper and lower portions of the auxiliary cylinder the exact arrangement of these ports being a matter of choice. The power cylinder v11 is equipped with two separate ignition devices such as thespark plugs indicated at 22 and 23, whereby successive charges of en plosive mixture may be ignited.

Operating withinV the cylinder. 11 is the main piston 211 having its ends of hollow formation and carried by a connecting rod 25 slidable through a packing gland or box 26 and suitably connected with a link 27 which is, in turn, connected with a crank portion 28 on a crank shaft 29 which obviously must be mounted within a suitable crank case equipped with bearingdevices,V

into the piston 24, itis obvious that -this.

is merely illustrative inasmuch as any other connection might be provided if found adat different times, into re ports 2O andl leading inder ll.

Y provided vcith an extension or arm 35 with a ire i chargeheing which is connected in some suitable manner afpitman 36 terminatingv in an eccentric strap lll' eneaged ahout a cam or eccentricl 88 on the crank shat't 2S) so that as the shalt rotatesthe sleeve valve 80 will he moved longitudinally Within the cylinder l5.

l Slidahly mounted i hin the valve 3G is a piston 39 equipped vvirn' suitable rings and carrying a piston rod ll() which is slidahlc through a suitable packing hon or gla'ndl'l f in the lower end of the valve 30 and which is pivotally connected with a pitman l2 ternir 11a-ting in an eccentric strap 43 engaged about a cam or eccentric lll on the shaft 29.

'In the operation, let it he assumed that the pistons Q-l and 39 in the cylind r ll and sleeve valve BO, respeetively,'are at the upper limit ot their movement, and it Will he seen that on the down stroke'ot the piston Qt the intake port 2O between the valve 3 and cylinder 1l is closed While the port 3l hetween the interior ot the valve 30 and port l? is open. rllhc port 2l at the hottom oit the cyl-- inder ll is in connnunication with the port B4@ at the hottom or the valve While the port is clore-d. rlhe exhaust port l@ is atso closed hy the piston lllhen the plug 22 sparks and the explosion cours, the piston 2li: is forced don'nvvardlv, causing the crank shaft 29 to turn and. at the same time the piston 3f) and valve 30 will move doivnivardly, the piston 39 sucking' in a i'resh charge oit' mixture through the ports li' and al and 'lforcing the previously drawn in c large heloiv the piston 391 through the ports Se and 2l into the cylinder ll. rllhe piston 39 moves downwardly sl i itly ahead of the valve 80 so that thecharge i drawn into the upp` i* end of' the valve heiter the port 33 regi ers ivith the port 20. By the time the piston 24e, valve BO and piston have reached the lov/er limits of their movenients the exhaust port i6 has uncovered sothat the previouslyT exploded charge ina-yesc'ape. 'llhecliarge ivhielirhas enteredthe cylinder ll' tl'u'ough theports 34;' and 2l is then en'- ploded hy he plug 23 and theV piston valve 8O and prior/it" are'tlien forced upwardly,

of va`vc EO hy the piston SQiand'at the same time torcing a enarge into the other end ot' avvfn into the hot-torn 'he cylinder` ll which Was drawn in the top ot the cylinder 30 on the previous down stroke. Each charge oi' 'tresh gas t'oreed into the'povv'er cylinder 1l results in l-orcing,l ont the burnt gases through the exhaust port 16. The action is the same at each up and dovvn stroke so that there are absolutely no idle strokes to Waste povver. Naturally, the movement oil the parts must be accurately timed to Vhringcg the various ports into rerC tration at the proper times to insure a sucking,l in oi' the i'resh charge into thev auxiliary or pumping' cylinderv and the forcing` of the compressed charge from the Vauxiliary cylinder into the povver cylinder'.

From the foregoing description and a study of the drawings it Will he' apparent that l have thus vprovided a simply constructed and highly efficient as Well as inexpensive engine employing a pump' structure or dev'iceio'r initially compressing the fuel charge and transferring it to the'power cylinder so that there is-no necessity for idle strokes for any reason, the construction being moreover, such as to eliminate all necessity i''or the employment of valves of the tappet or poppet types,the entire control being` effected by the single slidahle sleeve Which is appropriately ported and moved hy the' action ot the crank shalt itself.

While I have shown and described the preferred embodiment of my invention, it is ot course to loe understood that l reserve the right to make such changes in the form, construction and arrangement of parts as Will not depart from thespirit of the invention or the scope of the suhjoined claims.

l claim:

l. ln an internal combustion engine, a crank shaft having a crankv portion, a power cylinder, a piston slidable Within the power cylinder and operatively connected with said crank portion, an auxiliary cylinder located beside the porter cylinder and havingl ports at its ends communicating` therewith, intake ports leading into the ends of said auxiliary cylinder, a sleeve valve slidahly mounted Within thel auxiliary cylinder and having ports adapted vto hev brought into registration With said lir'st named ports and provided with other ports adapted to he brought into registration with the second named ports, a pist-on slidaloly mounted Within said sleeve valve, the powerv cylinder having an eXhaust'port at its center' and an ignition deviceat each end, Vand means operated from the crank shattior slidingsaid second named piston and said sleeve valve. Y 2. ln' an internal combustion engine, a crank shaftfhaving a crank portion, a power cylinder, a piston slidahle Within the power cylinder and operatively connected 7with saidV crankportion, an auxiliary cylinderlocated immediately adjacent4 the povver cylin! lli? ports connnnnioating with the ends thereof, intake ports leading into seid auxiliary cylinder nt its ends, a sleeve valve slidahly mounted Within theV auxiliary cylinder and having ports near its ends adapted to he brought into registration With said first named ports and provided with other ports adapted to be brought into registration with the second named ports, and a piston slid- :ihly mounted Within said sleeve valve7 the power cylinder having an exhaust port at its center and two sets of ignition devices at its ends, and eccentric means on the crank shaft operatively connected with the sleeve valve and piston therein for sliding the same With respect to each othei1 and Wit-h respect to the auxiliary cylinder at dierent Speeds.

In `testimony whereof I hereto alii); niy

signature.

SAMUEL J. DORLON. 

